From what we can make of the photo, this four-wheeled "Bust Roller" promises either an increase in lift and size, or a that a high pressure system will pass across your bosom.

Either way, it sounds like an interesting proposition only because it involves breasts. I have the distinct feeling that this same gadget is sold as a mundane meat tenderizer elsewhere in the world—a task which it fulfills dutifully. [Tokyo Times]